
public class code083 {
	public static void main(String[] args) {
		for (int i = 1; i <=10; i++) {
			for (int j = 1; j <=11-i; j++) {
			System.out.println(" ");	
			}
			for (int j = 1; j <=2*i-1; j++) {
				if(j==1||j==2*i-1){
					System.out.print("*");
				}else{
					System.out.println(" ");
				}
			}
			System.out.println();
		}
		for (int i = 1; i <=10; i++) {
			for (int j = 1; j <=i+1; j++) {
				System.out.print(" ");
			}
			for (int j = 1; j <=19-2*i; j++) {
				if(j==1||j==19-2*i){
					System.out.print("*");
				}else{
					System.out.print(" ");
				}
			}
			System.out.println();
		}
	}
}
